Overall, the number of cholera cases for the decade 2000–2010 increased by 130% and may continue to increase
Overall, the number of cholera cases for the decade 2000–2010 increased by 130 %. With increasing populations living in peri-urban slums and refugee camps, as well as increasing numbers of people exposed to the impacts of humanitarian crises, the risk from cholera will likely increase worldwide.
Within the developing world (without counting India and China) in 2011, 870 million people have gained access to improved sanitation since 1990, but there is a 12% increase of population using unimproved facilities in this region for the same 21-year period.
Open defecation rates have decreased from 24% in 1990 to 15% in 2011. Worldwide, 1 billion people practise open defecation, a decline of 244 million since 1990.
With only 47% of the rural population using improved sanitation, rural areas lag far behind urban areas where the rate is 80%. Seven out of ten people without improved sanitation live in rural areas.
The number of people in urban areas without improved sanitation increased by 196 million people between 1990 and 2011 because of urban population growth.
The world has met the target of halving the proportion of people without access to improved sources of water, five years ahead of schedule.
2.1 billion people gained access to improved sources for drinking-water since 1990. Over 70% of the global progress was achieved through access to piped drinking-water.
Access to improved sources for drinking-water in the urban areas of the developing world increased only by 2% between 1990 and 2011
Although 1.2 billion people gained access to improved sources for drinking-water in the urban areas of the developing world, due to the urban population growth the percentage gain is only 2% since 1990.